Richard Machemba

Datos Biográficos

ID8930764
NOMBRERichard Machemba
NOMBRESRichard
APELLIDOMachemba
FIRMAMACHEMBA R
AFILIACIONESNational Institute for Medical Research
VERIFICADONo
TOTAL DE OBRAS4
TOTAL DE CITAS0
TOTAL COMO AUTOR4
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN2018
AÑO MÁS RECIENTE DE PUBLICACIÓN2026
ÍNDICE H0

  • Self-reported and Point-of-Care Biomarkers of Substance Use Measures Among Older Adults with HIV from Low- and Middle-Income Countries

    Open AccessKathryn E Lancaster, Melissa A Stockton et al.ARTICLEAIDS and Behavior2026

    Measuring alcohol and other drug (AOD) use remains challenging in HIV care in low- and middle-income countries, where self-report and point-of-care (POC) urine biomarkers capture different time windows. Among 2,059 people with HIV aged 40 years or older across eight IeDEA clinics (2020 to 2022), we examined what self-reported AOD use (AUDIT, ASSIST) and POC urine tests (uEtG for alcohol; 5-panel drug screen) each capture. Self-report identified m…

  • Characterizing a Leak in the HIV Care Cascade

    Open AccessRichelle Harklerode, Jim Todd et al.ARTICLEFrontiers in Public Health2020

    Background. In Tanzania, HIV testing data are reported aggregately for national surveillance, making it difficult to accurately measure the extent to which newly diagnosed persons are entering care, which is a critical step of the HIV care cascade. We assess, at the individual level, linkage of newly diagnosed persons to HIV care. Methods. An expanded two-part referral form was developed to include additional variables and unique identifiers. The…

  • Cascade of care for HIV-seroconverters in rural Tanzania

    Soledad Colombe, Richard Machemba et al.ARTICLEAIDS Care2020

    We examined the HIV care cascade in a community-based cohort study in Kisesa, Magu, Tanzania. We analyzed the proportion achieving each stage of the cascade - Seroconversion, Awareness of HIV status, Enrollment in Care and Antiretroviral therapy (ART) initiation - and estimated the median and interquartile range for the time for progression to the next stage. Modified Poisson regression was used to estimate prevalence risk ratios for enrollment i…

  • Non-disclosure of HIV testing history in population-based surveys

    Open AccessChristopher T Rentsch, Georges Reniers et al.ARTICLEGlobal Health Action2018

    Background: HIV/AIDS programmes and organisations around the world use routinely updated estimates of the UNAIDS 90-90-90 targets to track progress and prioritise further programme implementation. Any bias in these estimates has the potential to mislead organisations on where gaps exist in HIV testing and treatment programmes. Objective: To measure the extent of undisclosed HIV testing history and its impact on estimating the proportion of people…